Chapter 1 - Foundations for Algebra - 1-2 Order of Operations and Evaluating Expressions - Practice and Problem-Solving Exercises - Page 13: 28

30

The given expression is 3st^2 ÷(st )+6 Which also can be written as, Let the unknown answer be x, 3st^2 ÷(st )+6=x Therefore x=3st^2 ÷(st )+6 s=4 t=8 applying it in this expression , we get, (3×4×8×8)÷(4×8)+6=x (apply BODMAS rule) (3×4×8×8 )/(4×8)+6=x 3×8+6=x X=24+6 X =30 Therefore the answer is 30.